Algicidal activity and identification of an algicidal substance produced by marine Pseudomonas sp. C55a-2

Sakata, Taizo; Yoshikawa, Takeshi; Nishitarumizu, Satomi

doi:10.1007/s12562-011-0345-8

Cited by 48 publications

(20 citation statements)

References 19 publications

(17 reference statements)

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“…Strain A2 was identified by phenotypic characterization and 16S rRNA sequence analysis to the genus Acinetobacter and identified by partial sequence analysis of the rpoB gene to A. guillouiae, a species found in human clinical and in environmental specimens [26]. Alteromonas and Pseudoalteromonas of the gproteobacteria have been found to be the most dominant genera among the known algicidal bacteria [20,23,33]. Cytophaga, Flavobacterium and Bacillus were also frequently reported to possess algicidal activity [21,34,35].…”

Section: Discussionmentioning

confidence: 99%

Growth inhibition and microcystin degradation effects of Acinetobacter guillouiae A2 on Microcystis aeruginosa

Zhang

et al. 2015

Research in Microbiology

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Section: Discussionmentioning

confidence: 99%

Growth inhibition and microcystin degradation effects of Acinetobacter guillouiae A2 on Microcystis aeruginosa

Zhang

et al. 2015

Research in Microbiology

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“…L74 directly attacks A. flos-aquae by cell-to-cell contact. Cytophaga , Myxobacter , and Saprospira from aquatic systems exhibit algicidal abilities by direct attack; by contrast, Bacillus , Pseudomonas, Alteromonas , and Pseudoalteromonas exhibit algicidal activities by indirect attack [14]. Streptomyces sp.…”

Section: Discussionmentioning

confidence: 99%

“…are common algicidal microorganisms [3,6,7]. These bacteria secrete algicidal substances, including proteins, peptides, amino acids, antibiotics, nitrogenous compounds, and alkaloids [8–14]. However, few algicidal compounds have been isolated and purified.…”

Section: Introductionmentioning

confidence: 99%

Isolation and Identification of Algicidal Compound from Streptomyces and Algicidal Mechanism to Microcystis aeruginosa

et al. 2013

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The biological control of cyanobacterial harmful algal blooms (cyanoHABs) is important to promote human health, environmental protection, and economic growth. Active algicidal compounds and algicidal mechanisms should be identified and investigated to control cyanoHABs. In this study, the algicidal actinobacterium Streptomyces sp. L74 was isolated from the soil of a nearby pond which located in the center lake of Guanghzou Higher Education Mega Center. Results showed that the algicidal activities of cyanoHABs are mainly achieved via an indirect attack by producing algicidal compounds. All active algicidal compounds are hydrophilic substances that are heat and pH stable. In the present study, an active compound (B3) was isolated and purified by high-performance liquid chromatography and identified as a type of triterpenoid saponin (2-hydroxy-12-oleanene-3, 28-O-D-glucopyranosyl) with a molecular formula of C42H70O13 as determined by infrared spectrometry, electrospray ionization mass spectrometry, and nuclear magnetic resonance. Active algicidal compounds from Streptomyces sp. L74 were shown to disrupt the antioxidant systems of Microcystis aeruginosa cells.

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“…At least some algicidal bacteria might kill prey algae by using some kinds of proteases. As other algicidal substances, Isatin and red pigments of prodigiosins were identifi ed from marine algicidal bacteria (Nakashima et al 2006 ;Kim et al 2008b ;Sakata et al 2011 ). Skerratt et al ( 2002 ) showed that Gram-negative algicidal bacteria appear to use the AI-2 mechanism (quorum sensing) at the mid-to late stage of the log growth phase.…”

Section: Characteristics Of Algicidal Bacteriamentioning

confidence: 99%

Interactions Between Harmful Algae and Algicidal and Growth-Inhibiting Bacteria Associated with Seaweeds and Seagrasses

Imai

2015

Marine Protists

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Phytoplankton and bacteria are the main components of marine ecosystems and hence comprise abundant numbers and biomass in the sea. There exist close and diverse interactions between phytoplankton and bacteria in marine ecosystems. Among these relationships, bacteria possessing algicidal and growthinhibiting activities against phytoplankton have been increasingly gathering attention and are expected to control phytoplankton dynamics especially harmful algal blooms in coastal environments. Algicidal activities are divided into two types, i.e., the direct attack type, needing direct attachment to host algal cells, and the indirect attack type, producing algicidal matter. Some bacteria kill part of algal populations, and they are growth-inhibiting bacteria. In harmful algal blooms (HABs) of such as the raphidophytes Heterosigma akashiwo and Chattonella spp., bacteria play an important role in the bloom terminations. Most algicidal bacteria are particle-associated forms in coastal seas. A new fi nding is that huge numbers of algicidal bacteria against HAB species (dinofl agellates and raphidophytes) were attached to the surface of seaweeds such as the green alga Ulva pertusa, the red alga Gelidium spp. and the brown algae Sargassum muticum and S. thunbergii . The densities of these algicidal bacteria reached as many as 10 6 g −1 wet weight. Further, algicidal bacteria were found in the biofi lm of the seagrass Zostera marina with high densities of 10 7 g −1 wet blade or more. In the case of the toxic dinofl agellate Alexandrium tamarense , growth-inhibiting bacteria with strong activities were isolated from the blade of Z. marina . In developed countries, seagrass-and seaweed beds have been lost by reclamation for increasing land of commercial uses. We here propose restoration of seagrass-and seaweed beds, not only for increasing the nursery grounds of various marine lives but also for creating preventative strategies for HAB occurrences. This is a kind of activity in conformity with the Sato-Umi concept recently proposed.

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Algicidal activity and identification of an algicidal substance produced by marine Pseudomonas sp. C55a-2

Cited by 48 publications

References 19 publications

Growth inhibition and microcystin degradation effects of Acinetobacter guillouiae A2 on Microcystis aeruginosa

Growth inhibition and microcystin degradation effects of Acinetobacter guillouiae A2 on Microcystis aeruginosa

Isolation and Identification of Algicidal Compound from Streptomyces and Algicidal Mechanism to Microcystis aeruginosa

Interactions Between Harmful Algae and Algicidal and Growth-Inhibiting Bacteria Associated with Seaweeds and Seagrasses

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